The Purisima Creek Redwoods Open Space Preserve is located on the western slopes of the Santa Cruz Mountains overlooking Half Moon Bay. The preserve was established with a gift of $2 million from the Save-the-Redwoods League.

The centerpiece of this 3,120-acre preserve is Purisima Creek Canyon, with its towering redwoods, rushing creek, and understory of ferns, berries, and wildflowers. Coastal scrub and hardwood forests of tanoak, madrone, and Douglas fir border the cool moist canyon. Magnificent views of the coast and Half Moon Bay are visible from the northern part of the preserve.